On Fri, Feb 5, 2021 at 1:17 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > On Fri, Feb 5, 2021 at 10:10 PM Nick Desaulniers > <ndesaulniers@xxxxxxxxxx> wrote: > > > > > Hi, > > > > > > when building with pahole v1.20 and binutils v2.35.2 plus Clang > > > v12.0.0-rc1 and DWARF-v5 I see: > > > ... > > > + info BTF .btf.vmlinux.bin.o > > > + [ != silent_ ] > > > + printf %-7s %s\n BTF .btf.vmlinux.bin.o > > > BTF .btf.vmlinux.bin.o > > > + LLVM_OBJCOPY=/opt/binutils/bin/objcopy /opt/pahole/bin/pahole -J > > > .tmp_vmlinux.btf > > > [115] INT DW_ATE_unsigned_1 Error emitting BTF type > > > Encountered error while encoding BTF. > > > > Yes, I observe this error, too. > > > > https://gist.github.com/nickdesaulniers/ae8c9efbe4da69b1cf0dce138c1d2781 > > > > via v9 of my DWARF v5 series, which should help make this easier to > > reproduce: > > https://lore.kernel.org/lkml/CA+icZUW3sg_PkbmKSFMs6EqwQV7=hvKuAgZSsbg=Qr6gTs7RbQ@xxxxxxxxxxxxxx/T/#m45ec7e6df4c4b5e9da034b95d7dfc8e2a0c81dac > > Thanks Nick for confirming the error. > > Ah, I see you passed: > > make LLVM=1 LLVM_IAS=1 ... > > Can you by chance try with KCFLAGS="-fbinutils-version=2.35"? $ PATH=/path/to/tot/pahole/build:$PATH make LLVM=1 LLVM_IAS=1 -j72 KCFLAGS="-fbinutils-version=2.35" ... BTF .btf.vmlinux.bin.o [12919] INT DW_ATE_unsigned_1 Error emitting BTF type Encountered error while encoding BTF. ... LD vmlinux BTFIDS vmlinux FAILED: load BTF from vmlinux: Invalid argument -- Thanks, ~Nick Desaulniers
